Friction heating apparatus for polishing wheels



J. PULS. FRICTION HEATING APPARATUS FOR POLISHING WHEELS.

APPLICATION FILED IUNE 7,, I92I PatentedjII Iay 23, 1922.

UNITED STATES JULIUS PULS, OF EAGLE GROVE, IOWA.

Lpplication filed June 7,

To all whom it may concern:

Be it known that I, JULIUs Puts, a citizenof the United States, residing at Eagle Grove, in the county of Wright and State of Iowa, have invented a certain new and useful Friction Heating Apparatus for Polishing Wheels, of which the following is a specification.

The object of my invention is to provide a friction heating apparatus for polishing wheels of shoe repairing and shining machines; the apparatus being of simple, durable and comparatively inexpensive construction.

More particularly my invention relates to a device or apparatus which may be used for the heating of polishing wheels for preventing wax or other material from sticking tothe wheels when being used; the apparatus being readily and easily operated.

My invention is to eliminate the wax or other material of similar nature from sticking to the wheels which are used for shining the shoes or soles of the shoes, or finishing the heels of the shoes.

It will be understood that a certain amount of wax is used for finishing the edges of the soles and heels of shoes and with my improved invention members may be caused to frictionally engage the polishing wheels thereby heating them and preventing any of the wax or other material from adhering to the wheels.

With these and other objects in view my invention consists in the construction, arrangement and combination of the various parts of my device, whereby the objects contemplated are attained, as hereinafter more fully set forth, pointed out in my claim, and illustrated in the accompanying drawings, in which:

Figure l is a perspective view of a portion of a shoe shining or repairing machine with my improved attachment installed thereon.

Figure 2 isa top, plan view of my attachment as applied to a machine, parts being broken away and shown in section to better illustrate the construction.

Figure 3 is an end elevation of Figure 2.

Figure 4 is a detail, sectional view taken onflthe line 4-4 of Figure 2 showing one of the forms used for engaging one type of wheel.

Figure 5 is a detail, sectional view taken on the line 5-5 of Figure 2 showing an- Specification of Letters Patent.

Patented May 23, 1222.

1921. Serial No. 475,783.

other form for engaging one of the wheels; and

Figure '6 is a central, sectional view taken on the line 6-6 of Figure 2 showing how one of the wheels is engaged from the side.

In the accompanying crawings l have used the reference numeral 10 to indicate a support of a shoe repair or shining machine which is provided with an operating shaft 11 and a fixed shaft or rod 12. Extending upwardly from the support 10 1s a rack 13 which may be used for supporting tools or shoes which are to be worked upon. The shaft 11 is provided with wheels 14:, 15 and 16 which are of the ordinary construction.

The parts just described are those of an ordinary shoe shining or repair machine which are used for the finishing of the edges of soles and heels, and for shining them when shoes are being repaired.

My attachment comprises a frame member A which includes a pair of arms 17 having their ends curved as at 18 and extended around? the shaft 12.

A bolt 19 is extended through each of the arms 17 for securely holding the frame member A in position.

Cross bars or slats 20 and 21 connect the two arms together and form the rigid frame member A.

Fixed to the cross bar 20 near one end thereof is a socket or hearing member 22 which is held to the cross bar 20 by means of the rivets 23.

A plunger 24 is provided in the bearing member 23 and has its forward end flattened as at The purpose of which will be hereinafter more fully set forth.

Fixed to the opposite end of the plunger 2% is a thin screw threaded rod 26. A wing nut 27 is fixed to the screw threaded rod 26.

In order to yieldingly hold the plunger in one of its positions I provide a spring 28 which is placed on the screw threaded rod 26 and held between one end of the bearing member 22 and the plunger 24:.

By rotating the wing nut 27 the plunger may be drawn within the bearing member against the action of the spring 28. The spring 28 normally tends to cause the plunger to be moved outwardlv or away from the bearing member 22.

Fixed to the flattened portion 25 of the plunger are a pair of arms 29 which extend adjacent to the edge of the wheel and has extensions formed thereon at right angles to the arms 29 which are within the outline of the wheel 14.

Blocks 31 of wood or some other suitable material are secured to the extensions 30 and are adapted to engage the inner surface of the wheel 14: as clearly illustrated in Figure 2 of the drawings.

Rotating the wing nut 27 and moving the plunger 24- inwardly will cause the friction blocks 31 to engage the inner surface of the wheel 14.

The engagement of the friction block 31 and the wheel 14 when the wheel is rotating at a high rate of speed will. cause the wheel 1% to become heated in which condition wax or other material of similar nature will, not form and adhere on the wheel.

When the wheel 14 is heated it will make it possible to use it for the finishing of soles and the edges of the heels of shoes without the inconvenience of having material adhere to the wheel and make the completed job less perfect than is performed when the wheel is in clean condition.

It will be understood that in the finishing of shoes when being repaired that various types of wheels are used. Some of the wh els are provided with ribs or the like which engage certain portions of the heel for finishing it.

The wheels 15 and 16 are designed to represent the various types of wheels used upon shoe shining or repair machines.

F or the type of wheel referred to by the reference numeral 15 I provide a pair of arms 32 which are secured to the cross bar 20 by means of a bolt 33.

The arms 32 have fixed to their forward ends blocks 34: which are similar to the blocks 31.

The arms 32 are designed to normally be spaced away from the wheel 15 so that in order to cause the blocks 34 to engage the wheel 15 I provide a bolt 35 having a wing nut 36 thereon. By rotating the wing nut on the bolt 33 I am able to cause the arms 32 to be moved towards each other thus causing the blocks 3 1 to frictionally engage the wheel 15 for heating it.

The heating of the wheel 15 operates for the preventing of wax or other material from sticking thereto for the purposes as explained heretofore.

A bearing member 37 is-provided on one of the arms 17 of the frame and is provided with a plunger member 38 having a block 39 therein. The block being similar in construction to the blocks 31 and 34 heretofore mentioned.

A screw threaded rod 40 is secured to the plunger 38 and has a nut 41 thereon. A spring 42 is received within the bearing member 37 and around the screw threaded rod 40.

The spring has one end rest against the bearing member and the other end against the plunger 38. The spring 12 yieldingly forces theplunger 38 outwardly and against the side of the wheel 16.

When it is desired to disengage the friction block 39 from the wheel 16 the nut 11 is rotated which causes the plunger 38 to be drawn inwardly against the action of the spring 12.

It will be seen that I have provided apparatus for frictionally engaging the various types of wheels used for shoe repair and finishing machines which are very simple and easily operated and which are very effective for the heating of the pulleys and thereby preventing was from adhering thereto.

Some changes may be made in the construction and arrangement of the parts of my machine without departing from the real spirit and purpose of my invention, and it is my intention to cover by my claim, any modified forms of structure or use of mechanical equivalents, which may be reasonably included within its scope.

I claim as my invention:

in combination with a burnishing machine having a burnishing wheel with laterally extending annular rim flanges, a heat ing device adapted to be attached to said machine, said heating device comprising a frame, a heating element thereon having a bifurcated arm, friction blocks thereon adapted to be brought into contact with the inner side of the flanges of the burnishing wheel, means for varying the tension on said friction blocks, said means including a shaft mounted in a bearing on the frame, a swing tending to force said shaft toward the face of the burnishing wheel, and a thumb nut on said shaft for drawing it toward the face of the burnishing wheel, said shaft having the bifurcated friction block carrying arm mounted on one of its ends.

Des Moines, Iowa, May 21st, 1921.

JULIUS PULS. 

